Valve assembly for air-compressing cylinders



May 24,- 1932.

A. WYZENBEEK VALVE ASSEMBLY FOR AIR COMPRESSING CYLINDERS Filed April 21. 1930 Inven flu, z./

i. zzV/ EEEWZ.

i .ANPDREWWYZENBEEK; or'onIoAG 7 snpplied by the cylinder.

:15 parts, and which can easily disassembled is bein Patented May 24, 1932 IT- nsures Fame r1" erases (30., OF CHICAGO, ILLINoIs, A COBPGRATIQN as DELAWARE 3 Application filed April a,

, Myinvention relates to a uni-taryvalve assembly for controlling both the intake of air to an air-compressing cylinder, and the duct through which the compressed airfi-s Iii-some of its general objects, my inven: tion aims to provide a simpleand inexpen-v sivevalv'e assembly for this purpose, which canrea'dily be attached asa unit ,to a single perforated end portion of'anaifjcompressing "cylinder, which will afford air passages of large .area in proportion to the size of the valve assembly, which will require onlysi-m- .ple machining for the manufacture of its and reassembled. V c g 7 Furthermore, my invention aims tojpro vide a valve assembly of thisclass which will have no slidably interfitting parts, which 20 willflbe free of auxiliaryspring members;

which can readily beconstrncted in .asize suitable for attaching the valve assembly-to a-g-asoline engine cylinder in substitution for the spark plug associatedwi'th that cylinder,

so as to convert a given cylinder of an engine e substanand from the accompanying drawings, in

which drawings Fig.1 is an elevation 0 embodying my invention.

Fig, 2 is an enlarged centr f a valve' assembly a1 and longi- 35 tudinal section through the same valve as-' sembly, including a section throughgtheportion ofa cylinder-head to which this assem lily is attached, showing the movable valve parts as they appear While compressed air g dischargedfrom the cylinder to an airhose r Fig. 3 isatransverse sectiontaken along theline33 of Fig. 2', but drawn on 'a'st ill" largerscale, with dotted lines showing the positions of air-inlet-controlling valve wings during the intake of air to the cylinder.

Fig.4 is a fragmentary central and longitudinal section taken along the'line 4- 4: of Fig 3 in the opposite direction from the v 50 section of Fig. 2 anddrawn on the same'scale 1930, ser al no; 44 ,037.

o, 1LL1noI s,AssIGnoii TO 1mg; itinnuiind' ifinme 1 as Fig; 2; showing the oses ibf, ma:

able' valve partsjasthey appear dnring the f intalze of air to the eylinderf; i

, Fig. 5 isan enlarged bottomy valveasseinbly i l ingthis as-it appears iwhen expanded in diameter by its own resiliency,;.;before this valve member :isinserted in the v-alveibody.

In the illustrated embodimentpmy valve assembly includes" an upright tubularbody time hoseaa-ttachin nipple which forms part of Fig, 6 is an enlarged perspective view=jof the inlet-controlling valvemembers; .SllOW 1 threaded at its lower end-to fitaboreZ in a Cylinder head 3.. -T.liis"bo dy has aportiion 1 1 of itsbore' contracted, iatfa distance from "both ends ofthe body, by'l'lan' annnlaricomi traction-4, thereby dividing; the b'odyr bore 4 into upperandlowertboreportions or chain i bers-A and B connected by a connecting port C of somewhat smaller. diameter. 1 a I Leading into the'lower, chamber 13 an sirably near the borecontraction: 4 are "two inlet; ports 5, whiclrports desirably have a joint area at least equal tothe'cross-sectional p area oi. the lower bore portion B. These two ports preferably have a common a-Xis D'dia-r metric of thebodypo'rtion v and the part of the-body 1 through whichthetwo ports extend is preferably-of a'polygonal crosssec tion (such "as hexagonal.) whi-chfWillf "pre sent parallel exterior fac'esat the outer en'ds of the two ports, so-ithatboth p ily be drilled in one operation. 1

y The body member also has atransverse "bore 8 extending through one sided the "body to the bore portionB; desirablyvat rightanr gles'to. theaxis D of the saidportsyan-d'radially of the said bore portion and with the axis of the transverse bore in the gsame'plaiie withthe-aXes-of bothpo'rts .7

V Insertedwithinthelower borelportion B orts'canjeasis an inlet valve member 6 consisting lof'a' centrally perforated strip of n1etal wider than eachofthe inlet ports 5 and vof less iniv.teri'or radiusithan the said boreportion B.

9 i tial length than the inner periphery, of the e -bore. portion B; thisv strip. being initially formed into'an incomplete tube-oflarger ex.-

7 smooth cylindrical formationpso that the valve member'6 can easily he slid up into the bore portion B and turned so that the medial perforation 7 in this memberv is uniformly.

spaced from the nearer edges of thetwo inlet ports 5, and so as to aline this perforatlon 7 with the transverse bore18 inthe valve body. Afscrew 9 is then slid through ,the trans- 'versebor'e 8 and the perforation7, and' this screw is threaded into a bar 10 which eX-' tends longitudinally o t the body within the bore portion'B, so that this bar will clamp the medial part, of the inlet valvemember this metal strip of such a length '(as shown in full lines inFig. 3) as to extend pastth e 1 6 against a part'of the bore portion B which is midway between 'thetwo 'inlet ports 5 cir cumferentia'lly ofthe valve b'ody .1. ,7 With the valve member 6 thus disposed, and '-with transverse .bo're 8 and both oft-he ports, the valve .memberfi normally closes both of the inlet ports,'as shown in full lines in Fig.

However, the strip from which the valve:

member 6 was formedgis, of siifliciently less length than'the complete interior periphery "of'the bore portion B, so thatthe'two wings (or portions of this member at opposite sides of the clamping'bar 10) .canfiex', consider-- ablyf'toward 1 each; other: as shown in dotted lines inlFi'g. 3) when these wings are pressed *towardeach otheri 7 Threaded into'the upper or outward end of-thej valve body is the lower br inward portion 12 ofa hose nipple which desirably has its outer end portion 13'corrugate'd for secure attaching to an air hOSe'14, and desir ably has jbetweenits said two endportions a radial flange '15 adapted to seat on the upper orv outward end'of the valve bodyl. The lower end'ofthe hose nipple is formed'to afhford symmetricallydisposed downward projections 16 spaced from-eachother and from the outward boreportion A, which projectionsare here shown (Figs.'2 and 5) as symmetrical portions of a tubular downward eX-' tension on the nipple.

,Interposed between these nipple projec tions 16 and the annular bore contraction 4. is'a valve ball or. air check ball 17, desirably of metal, which valve ball is of larger 'diameter than the boreof the said contraction 4 (or diameter of the connectingjport C), but considerably smaller than: either the .di-; amete r of the upper bore portion A; (in which this ball is disposed) or the distance between the pro ections 16'andthe said bore contract1on. V V w With a thus constructed valvefassembly attachedto the upper head end of the cylinder of! a' single-acting ,compressorin which the compression is efl'ected by the upward stroke" of'the piston, the action is as follows: 7

' Whenfthe piston is not actuated (as when theengine is standing still), the two symmetrical wings-of the inlet valve member 6- V (or portionsof that member at opposite sides H of the clamping bar 10) are pressed'bythe inherent resiliency of that member against V disposed, and extend across the inner ends 7 of the inlet ports 5, as shown in Fig.

the-bore portion B in which this member is Consequently, these inlet ports" are closed againsttheadm ission of bothair and dust.

At the same time,'-the' valve vall 17 is seated by gravity on the annular contraction t and disconnects both'the, lower; chamber B and the compressor cylinder from the hose, so thatcompressedair in the hose or any appliance connected to this hose will not return to the cylinder. To facilitate'this seating:

of the balll7, the upper face of the annular contraction or Valve 's'eat tdesirably ta'-. 7

pers'downwardly inward, as in Fig. 2.

the'air compressing cylinder, the partial vac-- uum created above the piston will cause the During the downstroke of the'piston lIl s outer air to :flex the two wingslof the valve '1 7 member 6 inwardly, after the manner shown in-dotted lines in Fig. thereby admitting. air between these wings and thebore of the lower chamber B and-into the cylinder. The check ball 17 remains seated gravity) on the annular bore contraction, .and any com? pressed aireabove it will'onl'y pressthis ball .tion, so that no air'wi ll be -s'uck through the hose; V

During the return or upward stroke, of the piston, the air compressed in. the cylinder 9 is forced upward into the lower chamber B ally the more firmly against the said contrac and presses the wings of the inlet'valve memher 6 tightly against the bore of this chant ber, thereby tightly closing the ports '5. The airpressure in this chamber alsolifts thecheck ball 17 off the annular contraction (or valVe se'at) 4 and holds the ball up against the projections 16 on thenipple, while the compressed-air passesthrough the spacesbe tween these projections into the bore of the nipple and on to the air hose 14.

In practice, the clamping member'lo is desirably a piecejof metal rod of consider= ably smaller diameter than the lower bore B, and of such cross-sect ion'as topresenta con- 7 vex surface on which the :inletvalve member.

will fleX freely. This clamping-baralso preferably is atleast as long as the height of I the inlet valve member 6, so as to distribute the clamping strain over the entire height of that member.

the valvebody and the nipple.

arrangedand proportioned, it willreadily be 1 "seen from the drawings "that I can securea speedy and ample admission of'air to the cylinder without any considerable throttling.

of theair while passing through the valve body, and that I also'can secure a speedy and V be flexed away low.

firm closing of each of the intake ports 5 during the upstroke of the piston in the cylinder, while employing a valve body having its inainibore portions A and B of relatively large diameter in proportion to the outside diameter 'ofthis body. This not only en- However, while I have heretofore described my invention in anembodiment including numerous desirable details of construction and arrangement, I do not wish to be limited in openings; a nipple-attached to the body and V presenting downwardly directed projections above the top of the saidflange; and a singleresilient member fastened to the valve body and disposed within the bore ofthat body and. controlling the admission of air through both of theinlet ports Y 3; A'valve as per claim 2, in which sur-" face presented to the strip by the clamping member isconvexed and of smaller radius portion of the 1 bore housing the than the stri ANDREW WYZENBEEK.

igned at Chicago, Illinois, April 18th, 1930.

these respects, since many changes might be 7 made without departing either from the spirit of my invention or from the appended claims. Nor do I wish to be limited to the use of my valve assembly in connection-with cylinders or engines initially designed for power-producing purposes, although my said assembly is particularly suited for use inthe speedy conversion of such an engine cylinder into an air compressor actuated by the pistons in other cylinders of the'same engine.

I claim as my invention:

1. A valve for an air compressing cylinder, 7

comprising: an upright tubular valve body provided intermediate its ends with two lateral inlet ports spaced circumferentially of the body, the body having an annular flange within its bore above the ports; a nipple attached'to the upper end of the body and presenting downwardly directed projections above the top of the said flange; a check valve member adapted to seat by gravity upon the said flange to close the bore of the flange and spaced downwardly from the projections when thus seated; and an inlet valve member housed by the bore of the body below the said flange and presenting two resilient wings,re-' spectively controlling the lateral inlet openings, each wing being normally curved by its a own resiliency against the'said bore and extending across the inner end ofone of the inlet openings, and each wing being adapted to ing.

from the adjacent inlet open 2. A valve for an air compressing cylinder, 7

comprising; an upright tubular valve body provided intermediate its ends with two lateral inlet ports spaced circumferentially of the'body, the bore of the body having an e I interior annular flange above the said inlet 

